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scst: Add more wait list state checks

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git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@8943 d57e44dd-8a1f-0410-8b47-8ef2f437770f
This commit is contained in:
Bart Van Assche
2020-05-19 22:18:13 +00:00
parent 68b5f8ec82
commit 5ff1a5efb2
1 changed files with 12 additions and 4 deletions
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srpt/src/ib_srpt.c
+12 -4
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@@ -1972,8 +1972,10 @@ srpt_handle_new_iu(struct srpt_rdma_ch *ch,
goto push;
}
if (!list_empty(&recv_ioctx->wait_list))
if (!list_empty(&recv_ioctx->wait_list)) {
WARN_ON_ONCE(!ch->processing_wait_list);
list_del_init(&recv_ioctx->wait_list);
}
switch (opcode) {
case SRP_CMD:
@@ -2006,8 +2008,10 @@ out:
return send_ioctx;
push:
if (list_empty(&recv_ioctx->wait_list))
if (list_empty(&recv_ioctx->wait_list)) {
WARN_ON_ONCE(ch->processing_wait_list);
list_add_tail(&recv_ioctx->wait_list, &ch->cmd_wait_list);
}
goto out;
}
@@ -2046,14 +2050,18 @@ static void srpt_process_wait_list(struct srpt_rdma_ch *ch)
{
struct srpt_recv_ioctx *recv_ioctx, *tmp;
ch->processing_wait_list = true;
WARN_ON_ONCE(ch->state == CH_CONNECTING);
if (list_empty(&ch->cmd_wait_list))
return;
WARN_ON_ONCE(ch->processing_wait_list);
ch->processing_wait_list = true;
list_for_each_entry_safe(recv_ioctx, tmp, &ch->cmd_wait_list,
wait_list) {
if (!srpt_handle_new_iu(ch, recv_ioctx, srpt_new_iu_context))
break;
}
ch->processing_wait_list = false;
}